Pump.



' 1 MI. CHAPMAN PUMP.

APPLICATION FILED MAY 4, 191 I.

Patented Feb. 8, 1916 3 SHEETS,SHEET I.

MIT. CHAPMAN.

PUMP.

AEPL ICAT|0N FILED MAY 4, 1911,. r

' I Patented Feb. 8, 1916.

'3 SHEETS-SHEET 3 P I w a UNITED STATES PATENT OFFICE.

MATTHEW 'I. CHAPMAN, 0F AURORA, ILLINOIS, ASSIGNOR TO THE AMERICAN WELL ' WORKS, OF AURORA, ILLINOIS, A CORPORATION OF ILLINOIS.

PUMP.

To all whom, it may concern Be it known that I, MA'rrHEw T. CHAP- MAN, a citizen of the United States, residing at Aurora, in the county of Kane and State of Illinois, have invented certain new and useful Improvements in Pumps, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to pumps for deep wells, and has particularly for its object to provide an improved pump of the centrifugal type peculiarly adapted for use in small wells. I accomplish this object as illustrated in the accompanying drawings and as hereinafter described.

What I regard as new is set forth in the claims.

In the accompanying drawings, Figure 1 is a vertical section, illustrating the invention; Fig. 2 is a sectional view of a part of a wcll'tube, illustrating the upper portion of my improved pump; Fig. 3 is a crosssection on line 33 of Fig. 2;, Fig. l is a cross-section on line 44 of Fig. 2; Fig. 5.

is a vertical section of the lower portion of my improved pump; and Fig. 6 is a crosssection on line 6-6 of Fig. 2.

My improved pump relates to that class of rotary pumps in which the well-tube is used as an outlet pipe for the water raised by the pump, and comprises a rotary pump rod or shaft which extends down through the well-tube and carries one or more runners each of which is mounted to rotate in a cylinder provided inside the well-tube, the several cylinders being connected in series so that the water passes consecutively from the lower to the upper cylinders and finally to the well-tube. The several cylinders are suspended in the well-tube by a casing which incloses the pump-shaft, and above the top cylinder, and, when a foundation is provided below the pumping mechanism, below the bottom cylinder also, packing is provided between the respective cylinders and the well-tube so that an intermediate chamber is formed which surrounds the several cylinder sections. The upper end of this chamber communicates through suitable passages with the surface of the pump-shaft below a bearing therefor provided above the uppermost runner, and also communicates with the Welltube at its lower end, which is below the lowermost runner, so that water and the sediment carried thereby, are pre- Specification of Letters Patent.

Patented Feb. 8, 1916.

Application filed Ma a, 1911. Serial No. 625,014.

vented from gaining access to and cutting out the pump-shaft bearings. The casing above referred to protects the upper portion vide means for centering the shaft bearings at other points.

As shown in Fig. 1, 6 indicates the welltube and 7 the pump rod orshaft. Said pump-shaft may be made in any desired number ofv sections which are united by couplings 8 in the form of screw-threaded sleeves in whichthe ends of the shaft sections are screwed. 9 10 indicate runners arranged at suitable intervals upon the pump-shaft and connected with screwthreaded sleeves 11-12 by which they are secured to'the shaft. The runners 910 are mounted, respectively, in cylinders 13-44, which, as shown in Figs. 2 and 5, are coupled together in series, each cylinder having screw-threads at its upper cnd'and a screwthreaded extension 15 of reduced diameter at its lower end adapted to screw into the upper end of the next lower cylinder. The lower end of each cylinder is also of reduced internal diameter, by the'use ofan annular ring 16 formed with the extension 15, to provide a throat through which the Water passes up to the runner. InWardly-projecting webs 17, are also provided at the lower end of each cylinder section to stop the circulatory motion of the water and direct it dation is preferably of the construction shown and described in the application of Matthew. T. and Mark C. Chapman, Serial No. 589,216, and forms no part of my present invention, but, for convenience, it may be explained t-hat it comprises thesleeve 21, a ring 22 adapted to slide upon a reduced cylindrical extension 23 of said sleeve, wedges2 1connected with the ring 22 by a flange 25, a collar 26 screwed upon the lower end of the cylinder 23, a spring 27 mounted between the collar 26 and the ring 22, and screws 28 which extend through the ring 22 and through longitudinal slots 29 in the cylinder 23. The arrangement of the foundation is such that by means of a. suitable tool which engages the inner ends of the screws 28 the foundation may be lowered in the well to the desired point, when the tapered sleeve 21 will act to move the wedges 2 1 outward so that they will tightly engage and bind against the well-tube, preventing the foundaticn from descending farther. The packing 20 fits into the upper end of the tapered sleeve 21, and being expanded by the lower end of the sleeve 18, forms a tight closure at the lower end of a chamber 30 formed between the cylinder sections 13 and 14 and the well-tube 6, as shown in Fig. hen

the packing 20 is used holes 81 are provided in the cylinder 18 above the packing 20 and below the cylinder 14 to afford communication between the lower end of the chamber 30 and the interior of the well below the lowermost runner 10.

The upper end of the chamber 30 is closed tightly by a packing sleeve 32 which fits tightly in the well-tube (3 and is connected at its lower end with an upwardly-projecting flange 33 carried by a-tubular coupling 3i which is secured, preferably by screwing, to the upper end of the uppermost cylinder 13, as shown in- Fig. 2. The packing sleeve 32 is also-of rubber or other suitable material, and it is clamped in position by a ring 35 secured by rivets 36 to the flange The coupling 34 is provided with an up ward extension 37 connected to it by radial arms 38, said extension forming a bearing for the pump-shaft 7. It is also provided with a downward extension 39 below the arms 38,. which also forms a bearing for the shaft '7. Passages 40 are provided in the arms 38, said passages extending from the shaft 7 to the upper portion of the chainber 30the purpose of said passages being to conduct any water that passes up between the bearing 39 and the shaft out and deliver it} to th'echambcr 30, whence it may passdow'nand] tl'irough the openings 38 back in'to'the well-tube below thelowermost runner .10. Thus the admission of water and sediment into or above the bearing 37 is prevented, so t'hat'la'itting out of the bearing is' avoided. p

41 42 ndicatecasing sections or tubes whicbf fiaitije tlle pump-shaft 7 above the bearirt otect 'it from water pass- 'e well-tube 6. The lower M v a sleeve 42* aridits upper end q i c 1s connected'by a coupl ng sleeve 4o with the neitt t sing section 42 above it. The

ended with i dial webs e4 having bearing plates at their outer ends which bea" against the inner walls of the well-tube and serve to center the casing sections 414:2 in the well-tube.

416 indicates a bearing for the pumpshaft, which is fitted within the casing section 4.1 and is held in position by means of the casing sections ll-AC2, it being provided with a flange 4'? at its upper end which fits between the adjoining ends of said casing sections, as shown in Fig. 2. By screwing the casing sections far enough into the coupling sleeve 413 they may be made to bind tightly upon the flange 47, thereby holding the bearing 46 from. rotating. As shown at 48 in Fig. 2, the upper surface of the bearing 46 is made funnelshaped to receive a lubricant and direct it down between the bearing and the shaft 7 to oil the lower bearing. Thus a supply of lubricant placed i-n the recess formed in the upper face of the bearing 46 for the purpose, or the excess of lubricant falling into said recess from the bearing at the top of the casing, will pass down through the casing 41, between the shaft and the bearings lubricating the bearings and passing out through the passages 40 leading to the water supply passage of the pump through the openings 31.

49 indicates a thrust-block mounted on the shaft 7 above the bearing 37, and 50 indicates lock-nuts screwed upon said shaft above the thrust-block 49. The lower end of the pump-shaft 7 is mounted in a bearing 51 carried by the sleeve 19 so that the lower endot said shaft is properly centered.

52 indicates a bearing block mounted on the lower end oi? the pump-shaft below the bearing 51, and indicates nuts screwed on the lower end 05 the pump-shaft, thereby securing the several cylinders properly upon the pump-shaft.

The several cylinder sections are suspended in the well-tube through their attachment to the pump-shaft casing 41-42, which, as shown in Fig. l, is itself suspended from a base 57, the uppermost casing section 42 e" Provided with a collar 58 which rests upon a. flange 59 with which the base 57 is provided. The pump-shaft 7 extends up through the base 57 and is adiustably supported at or near its upper end by a ballbearing 5-il mounted upon a collar 54 having a screw-threaded connection with a plate 54 carried by a frame which extends up from the base 57, as shown in Fig. 1. A setscrew 5t is employed for locking: the collar 54 against turning on the plate 54 A motor 56 or other drivingdevice is mounted upon the upper end of the shaft for rotating the same.

(30 indicates a discharge-pipe which forms a continuation of thewell-tube 6, and 61 charge-pipe and surrounding the casing it will be sufiicient to support the cylinder sections of the casing sections -l142 alone, but, as shown in Fig. 5, a foundation may be used to advantage. since it holds the lower end of the pumping mechanism properly centered in the well-tube, and, moreover, forms a means of intercepting and supporting the pumping i'i'iechanism in case of breakage of the pump-shaft or either of the casing sections.

In placing the apparatus in the well, after the .foundation has been lowered to the proper point, the casing having the proper number of cylinder sections attached to it and the pump-shaft equipped with the desired number of runners is lowered into the well. The runners are lowered to a pointwhere they are below the level of the standing water in the well so that when the pumpshaft is rotated the 'atelr is raised by the runners and forced out through the welltube. Any water that may pass up between the bearing 39 and the pump-shaft escapes to the chamber 31 through the passages 40, and the suction of the runners causesdt to flow down through said chamber into the well-tube, where it is raised and discharged through the outlet with the main body of water.

The bearing-plates 45 are extended vertically beyond the webs 44 so as to have an extended bearing on the inner walls of the well-tube in order to enable said plates to ride properly over the joints in the welltube, which, as is usual, is composed of sec tions coupled together.

That which I claim as my invention, and desire to secure by Letters Patent, is,-

1. The combination of a well tube through which the liquid pumped is discharged, a rotary pump shaft in said well tube, a casing in saidwell tube about said shaft, a runner carried by said shaft, a cylinder about said runner below said casing having its walls spaced away from the walls of the well tube, and a packing between the upper end of said cylinder and said well tube, the annular space between said cylinder and said well tube being at its upper end in communication with the interior of said casing and at its lower end in communication with the interior of the cylinder below the runner.

2. The combination of a well-tube, a casing, a rotary pump-shaft therein, a runner carried by said shaft, a cylinder in which said runner rotates, said cylinder being supported by said casing, a chamber between the cylinder and the well-tube, and packing between the upper portion of the cylinder and the well-tube.

3, The combination with a Well-tube, of a rotary pump comprising a rotary shaft having pumping runners mounted thereon and rotating therewith, a casing for said shaft, pump cylinders in which said runners rotate. and packing between the uppermost pump cylinder and the well-tube.

4. The combination with a well-tube, of a rotary'pump comprising a rotary shaft hav ing pumping runners mounted thereon and rotating therewith, a casing for said shaft, pump cylinders in which said runners rotate, said pump cylinders being supported by said casing, and packing between the uppermost pump cylinder and the well-tube.

5. The combination with a well-tube, of a rotary pump comprising a rotary shaft having pumping runners mounted thereon and zmatiug therewith. a casing-for said shaft,

rump cylinders in which said runners rotate, said pump cylinders being supported said casing, packing between the uppermost pump cylinder and'the well-tube, and a foundation below the pumping mechanism.

(i. The combination with a \"BlltllbQ, of a rotary pump comprising a rotary shaft having. pumping runners mounted thereon and tating therewith, a casing for said shaft, pump cylinders in which said runners rotate, said pump cylinders being supported by said casing, packing between the uppermost pump cvlinder and the well-tube, and a foundation supporting said cylinders from below.

7. The combination with a well-tube, of a rotary pump comprising a rotary shaft havingpunming runners mounted thereon, pump, cylinders in which said runners ro-- tate, a chamber between said cylinders and the well-tube, means separating the upper portion of said chamber from the well-tube and a foundation supporting said cylinders from below, the lower portion of said chamber commun rating with the well-tube.

8.' The combination with a w'ell-tube, of a "rotary pump comprising a rotary shaft having pumping runners mounted thereon, pump cylinders in which said runners rotate, a chamber between said cylinders and the well-tube, a foundation supporting said cylinders from below, the lower portion of said chamber communicating with the welltube, and a casing inclosing said shaft and supporting the cylindersfrom above.

9. The combination with a well-tube, of a pump comprising a rotary pump-shaft, a

runner mounted thereon, a cylinder within the well-tube in which said. runner rotates, said cvlinder being of reduced diameter and forming with the well-tube a chamber, and a passage extending from the pump-shaft above the runner to said chamber.

10. The combination with a welltube. of a pump comprising a rotary pump-shaft, a runner mounted thereon, a cylinder Within 'der and inclosing the Well-tube receiving the the Well-tube in'which said runner rotates, said cylinder being of reduced diameter and forming with the well-tube a chamber, a passage extending from the pump-shaft above the runner to said chamber, said. chamber communicating with the well-tube below the runner.

11. The combination with a Well-tube, of a pump-shaftextending one or more runners carried by said shaft, a corresponding number of cylinders forming pumping sections surrounding said runners, raid cylinders communicating with one another in series, means supporting said cylinders, and packing in the well-tube between the uppermost pumping section and the well-tube.

'12. The combination with a well-tuhe, of a foundation'secured therein, a packing sleeve above said foundation, a tapered sleeve engaging said packing, a cylinder section connected with said sleeve, a pumpshai't extending through said cylinder section and having a runner carried thereby, a bearing for said shaft carried by said. sleeve, an upper bearing for said shaft above the runner, and packing'between the upper bearing and the well-tube.

13. The combination of a pinup-shaft, one or more runners carried thereby. cylinders in which said runners rotate, ach of said cylinders being screw-tln'caded at its upper end and having a reduced sccw-threaded extension at its lower end, a casing connected with the uppermost cylindc' and inclosing the pump-shaft, and a well-tube receiving the liquid pumped from the uppermost cylinder.

14. The combination. of a pump-shaft. one or more runners carried thereby, cylinders in which said runners rotate, cach ot' said cylinders being screw-tln'eaded at its upper end and having a reduced screw-threaded. extension at its lower end, intcrnally projecting Webs carried by said cxtcnsion. a casing connected-with the uppcrmost cylinpump-shaft, and a liquid pumped trom the uppermost cylinder.

15. The combination of a pum 'rshat't, one or more runners carried thereby. cylinders in which said runners rotate. each of said cylinders being screw-threiuled at its upper end and having a reduced sci-cw-thrcadcd extension at its lower end. a well-tube within which said cylinder or (yllnilfill b' is supported, the internal diameter of said wc!ltube being greater than thc cxtcrnal diameter of said cylinders. and moans supporting said cylinders in the well-tube.

16. The combination oi a pump shatt. one or more runners carried thcrchy. cylindcrs in which said runners rotate. each of said cylinders lacing scrcw-thrcaded at its uppcr down into the well,

end and having a reduced screw-th1eaded extension at its lower end, a well-tubclwithin which said cylinder or cylinders is supported,.the internal diameter of said well-tube being greater than the external diameter of said cYllIKlQlfS, forming a chamber surrounding said cylinders, means for closing the uppcr end of said chamber, and means supporting said cylinders in the well-tube.

17. The combination of a uunpehaft. one or more runners carried thereby, cylinders in which said runners rotate, each of said cylinders being screw-thrcaded at its upper end and having a reduced scrcw-tln'eaded extension at its lower end, a well-tube within which said cylinder or cylinder-s is supported. the internal diameter of said welltube being greater than the external diameter of saio-cylimlers. forming a chamber surrounding said cylinders. packing for closing the upper and lower 'ends of said chamber, and means supporting said cylinders in the well-tube,

18. 5t deep-well pump. comprising a .pmnp-shat't. a plurality of runncrs carried thereby, a plurality of cylinders connected togcthcr in series and respectively surrounding the several runners. hcarings tor said shaft connected with the upper and lowcr ends of the series of cylinders. and packing between the uppcr cnd oi' the scrics ot cylinders and thc well-tube.

- 19. The combination with a wcll-tilbc. of a foundation sccurcd thcrcin. a packing slccvc abovc said foundation. a tapcrcd slcevc engaging said packing. a cylinder section conncctcd with said slccvc. a pumpshat't cxtcnding through said cylindcr section and having a runncr carricd thcrcbv. a lwaring for said shajlt' carried by said sleeve, an upper bearing for said sha it above the runner. packing hctwccn thc uppcr hearing and thc wcll-tubc. and a casing coiincctcd with said uppcr bearing and inclosing thc upper portion of thc pump-shatt.

20. A dccp-wcll pump. -comprising a pump-shaft. a plurality ol runucrs carried thereby. a plurality of cylinders conncctcd togcthcr in scrics and rcspcctivcly surrounding the scvcral ruuncrs hcarings For said shait connected with thc uppcr cnd of thc series of cylinders. packing bctwcc'o thc upper cud of the series of cylindcrs and thc well-tubc. a casing inclosing the pump-shaft above the upper bcaring. and mcans indcpendent of the pump-shaft for securing the scvcral cylinders in position thereupon.

21. Thc combination of a wclltubc. a pump-shaft. a runucr carried thcrcby. a bcaring tor said slia't't abovc said ruuncr. a sectional tubc inc-losing said'shal't and bcar ing adjacent ends ol said scctional tuhc nourotatably cngaging said l cariug and cxtcrnal means carricd by said scctional tube for lll) coupling the sections thereof together and centering the same in the well-tube, said coupling means having a sliding fit in said well-tube.

.22. The combination with a well-tube, of a pump-shaft, means carried by said shaft for elevating the water in the well-tube, a sectional tube inclosing said shaft, and means carried by the latter tube for coupling the sections thereof together and centering the same in the well-tube and having vertically-extended bearing-plates adapted to engage the well-tube, said bearing-plates having a sliding fit in said well-tube.

23.-The combination of a well-tube, a pump-shaft, a runner carried thereby, a bearing for said shaft above said runner, a sectional tube inclosing said shaft and said bearing, a sleeve screwed on the adjacent ends of said sectional tubes, and bearingplates carried bysaid sleeve engaging the well-tube and having a slidingfit therein.

24. The combination of a well-tube, a pump-shaft, a runner carried thereby, a bearing for said shaft above said runner, a sectional tube inclosing said shaft and said bearing, the adjacent ends of said sectional tube having a tight engagement with said bearing whereby it is held against rotation, a. sleeve screwed on the said adjacent ends of said sectional tubes, and bearing-plates carried by said sleeve engaging the Welltube and having a sliding fit therein.

25. The combination of'a' well tube, and pumping means extending down into said well tube and adapted to be readily lifted therefrom, said pumping means comprising a rotary pump shaft, a casing about said shaft, a. runner below said casing adapted to be rotated by said shaft, 2. cylinder in said well tube about said runner hav- 1 ing its wall spaced away from the walls of the well tube, and a.packii1g between the upper end of the cylinder and the wall of the well tube, the annular chamber between the well tube and the cylinder being in communication at its upper end below the said packing with the interior of the shaft casing and being in communication at its lower end with thewater supply passage of the pump below the runner.

26. The combination of a well tube, and piu'n 'iiug means extending down into said well tube and adapted to be readily lifted therefrom. said pumping means comprising rotary pump shaft, a casing about said shaft, :1. bearing member closing the lower end of said casing about said shaft, :1 runner below said casing adapted to be rotated by said shaft, a cylinder in said well tube about said runner having its walls spaced.

away from the wall of the well tube, and a packing between the upper end of the cylinder and the wall of the well tube, said bear- I *the well tube and the. cylinder whereby the interior of the casing communicates through the bearing with the said annular chamber which communicates at its lower end with the water supply passage of the pump below the runner.

27. The combination of a well tube, and pumping means extending down into said well tube and adapted to be readily lifted therefrom, said pumping means comprising a rotary pump shaft, a casing about said shaft, a bearing for said shaft at the lower end of said casing, a runner carried by said shaft below said bearing, a cylinder in said well tube about said runner having its walls spaced away from the walls of the well tube, and packings between the ends of the cylinder and the well tube, the annular chamber between the well tube and the cylinder being in communication at its up per end with the interior ofthe shaft casing through the lowermost bearing and being in communication at its lower end with the interior of the cylinder..

28. The combination of a well. tube, and pumping means extending down into said well tube and adapted to be readily lifted therefrom, said pumping means comprising a rotary pump shaft, a runner carried by said shaft, a cylinder in which said runner rotates, and packings between the well tube and the upper and lower ends respectively of said cylinder, a passage being provided between said packings opening upon the shaft at the upper end of the cylinder and opening into the cylinder below the runner.

29. The combination of a well tube, and pumping means extending down into said well tube and adapted to be readily lifted therefrom, said pumping means comprising a pump shaft, a casing thereabout protecting said shaft from the liquid being pumped, cylinder supported by said casing, and a runner carried by said shaft rotatable in said cylinder, a passageway being provided from the casing above said runner to the water supply passage of the pump below the runner.

30. The combination of a well tube, and punu'iing means extending down into said well tube and adapted to be readily lifted therefrom, said pumping means comprising a. pump shaft, a casing about said pum shaft serving to protect the shaft from the liquid being pumped, a cylinder supported by said casing, a runner in said cylinder adapted to be rotated by said shaft, a pas-.

sageway being provided leading from, the inter or of the casing at its lower end about the shaft and about the cyhnder within the ing having an inwardly-extending annular ring supported therein, a runner mounted on said shaft and rotatable therewith in 15 said cylinder, and means for adjusting said pump shaft up and down in said Well tube for adjusting the runner relative to the said ring.

MATTHEW T. CHAPMAN.

Witnesses:

JOHN L. JACKSON, MINNIE A. HUNTER. 

